Patents by Inventor Chien-Tsai Li

Chien-Tsai Li has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11013103
    Abstract: A method for forming a circuit board includes forming a first dielectric layer, a first circuit layer in the first dielectric layer, a second circuit layer on the first dielectric layer, and a plurality of conductive vias in the first dielectric layer and connecting the first circuit layer to the second circuit layer; forming a second dielectric layer on the first dielectric layer and the second circuit layer; forming a plurality of openings in the second dielectric layer to expose a plurality of parts of the second circuit layer; forming a seed layer on the exposed parts of the second circuit layer and sidewalls of the openings; and forming a plurality of bonding layers on the seed layer, wherein the bonding layers and the seed layer are made of copper, and the bonding layers are porous.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: May 18, 2021
    Assignee: Unimicron Technology Corp.
    Inventors: Ra-Min Tain, Kai-Ming Yang, Chien-Tsai Li
  • Publication number: 20190098746
    Abstract: A method for forming a circuit board includes forming a first dielectric layer, a first circuit layer in the first dielectric layer, a second circuit layer on the first dielectric layer, and a plurality of conductive vias in the first dielectric layer and connecting the first circuit layer to the second circuit layer; forming a second dielectric layer on the first dielectric layer and the second circuit layer; forming a plurality of openings in the second dielectric layer to expose a plurality of parts of the second circuit layer; forming a seed layer on the exposed parts of the second circuit layer and sidewalls of the openings; and forming a plurality of bonding layers on the seed layer, wherein the bonding layers and the seed layer are made of copper, and the bonding layers are porous.
    Type: Application
    Filed: November 29, 2018
    Publication date: March 28, 2019
    Inventors: Ra-Min TAIN, Kai-Ming YANG, Chien-Tsai LI
  • Patent number: 10178755
    Abstract: A circuit board includes a first dielectric layer, a first circuit layer, a second circuit layer, a plurality of conductive vias, a second dielectric layer, a patterned seed layer, and a plurality of bonding layers. The first circuit layer is disposed in the first dielectric layer. The second circuit layer is disposed on the first dielectric layer. The conductive vias are disposed in the first dielectric layer and connect the first circuit layer to the second circuit layer. The second dielectric layer is disposed on the first dielectric layer and the second circuit layer and has a plurality of openings to expose a plurality of parts of the second circuit layer. The patterned seed layer is disposed on the exposed parts of second circuit layer and sidewalls of the openings. The bonding layers are respectively disposed on the patterned seed layer and made of porous copper.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: January 8, 2019
    Assignee: UNIMICRON TECHNOLOGY CORP.
    Inventors: Ra-Min Tain, Kai-Ming Yang, Chien-Tsai Li
  • Publication number: 20180368263
    Abstract: A chip package circuit board module including a circuit board and at least one original chip is provided. The circuit board includes at least one first pad, at least one second pad and at least one substitute pad. The at least one second pad is located besides the at least one first pad and separated from the at least one first pad. The at least one substitute pad is adjacent to the at least one second pad and separated from the at least one first pad and the at least one second pad. The at least one original chip is connected to the at least one first pad and at least one the second pad, respectively. A total width of a portion corresponding to each of the at least one second pad and a portion corresponding to the substitute pad adjacent to the second pad of the first pad is greater than or equal to twice a width of the original chip.
    Type: Application
    Filed: June 14, 2017
    Publication date: December 20, 2018
    Applicant: Unimicron Technology Corp.
    Inventors: Wen-Fang Liu, Shao-Chien Lee, Chen-Wei Tseng, Zong-Hua Li, Chien-Tsai Li
  • Patent number: 10159151
    Abstract: A chip package circuit board module including a circuit board and at least one original chip is provided. The circuit board includes at least one first pad, at least one second pad and at least one substitute pad. The at least one second pad is located besides the at least one first pad and separated from the at least one first pad. The at least one substitute pad is adjacent to the at least one second pad and separated from the at least one first pad and the at least one second pad. The at least one original chip is connected to the at least one first pad and at least one the second pad, respectively. A total width of a portion corresponding to each of the at least one second pad and a portion corresponding to the substitute pad adjacent to the second pad of the first pad is greater than or equal to twice a width of the original chip.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: December 18, 2018
    Assignee: Unimicron Technology Corp.
    Inventors: Wen-Fang Liu, Shao-Chien Lee, Chen-Wei Tseng, Zong-Hua Li, Chien-Tsai Li
  • Publication number: 20180332700
    Abstract: A circuit board includes a first dielectric layer, a first circuit layer, a second circuit layer, a plurality of conductive vias, a second dielectric layer, a patterned seed layer, and a plurality of bonding layers. The first circuit layer is disposed in the first dielectric layer. The second circuit layer is disposed on the first dielectric layer. The conductive vias are disposed in the first dielectric layer and connect the first circuit layer to the second circuit layer. The second dielectric layer is disposed on the first dielectric layer and the second circuit layer and has a plurality of openings to expose a plurality of parts of the second circuit layer. The patterned seed layer is disposed on the exposed parts of second circuit layer and sidewalls of the openings. The bonding layers are respectively disposed on the patterned seed layer and made of porous copper.
    Type: Application
    Filed: May 9, 2017
    Publication date: November 15, 2018
    Inventors: Ra-Min TAIN, Kai-Ming YANG, Chien-Tsai LI
  • Patent number: 10070536
    Abstract: Provided is a manufacturing method of a circuit board structure including steps as below. A glass film is provided on an electrostatic chuck (E-chuck). A dicing process is performed, such that at least one slit is formed in the glass film. A plurality of first conductive vias are formed in the glass film. A first circuit layer is formed on the glass film. A polymer layer is formed on the first circuit layer. The polymer layer covers surfaces of the first circuit layer and the glass film. A plurality of second conductive vias are formed in the polymer layer. A second circuit layer is formed on the polymer layer, such that a first circuit board structure is formed. A singulation process is performed, such that the first circuit board structure is divided into a plurality of second circuit board structures.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: September 4, 2018
    Assignee: Unimicron Technology Corp.
    Inventors: Chien-Tsai Li, Chien-Te Wu, Cheng-Chung Lo
  • Patent number: 9917046
    Abstract: Provided is a manufacturing method of a circuit board structure including steps as below. A glass film is provided on an electrostatic chuck (E-chuck). A plurality of first conductive vias are formed in the glass film. A first circuit layer is formed on an upper surface of the glass film, such that the first circuit layer is electrically connected with the first conductive vias. A first polymer layer is formed on the first circuit layer. The first polymer layer covers a surface of the first circuit layer and the upper surface of the glass film. A plurality of second conductive vias are formed in the first polymer layer. A second circuit layer is formed on the first polymer layer, such that the second circuit layer is electrically connected with the second conductive vias. The E-chuck is removed.
    Type: Grant
    Filed: July 4, 2016
    Date of Patent: March 13, 2018
    Assignee: Unimicron Technology Corp.
    Inventors: Chien-Te Wu, Chien-Tsai Li, Cheng-Chung Lo
  • Publication number: 20180014409
    Abstract: Provided is a manufacturing method of a circuit board structure including steps as below. A glass film is provided on an electrostatic chuck (E-chuck). A dicing process is performed, such that at least one slit is formed in the glass film. A plurality of first conductive vias are formed in the glass film. A first circuit layer is formed on the glass film. A polymer layer is formed on the first circuit layer. The polymer layer covers surfaces of the first circuit layer and the glass film. A plurality of second conductive vias are formed in the polymer layer. A second circuit layer is formed on the polymer layer, such that a first circuit board structure is formed. A singulation process is performed, such that the first circuit board structure is divided into a plurality of second circuit board structures.
    Type: Application
    Filed: July 5, 2016
    Publication date: January 11, 2018
    Inventors: Chien-Tsai Li, Chien-Te Wu, Cheng-Chung Lo
  • Publication number: 20180005933
    Abstract: Provided is a manufacturing method of a circuit board structure including steps as below. A glass film is provided on an electrostatic chuck (E-chuck). A plurality of first conductive vias are formed in the glass film. A first circuit layer is formed on an upper surface of the glass film, such that the first circuit layer is electrically connected with the first conductive vias. A first polymer layer is formed on the first circuit layer. The first polymer layer covers a surface of the first circuit layer and the upper surface of the glass film. A plurality of second conductive vias are formed in the first polymer layer. A second circuit layer is formed on the first polymer layer, such that the second circuit layer is electrically connected with the second conductive vias. The E-chuck is removed.
    Type: Application
    Filed: July 4, 2016
    Publication date: January 4, 2018
    Inventors: Chien-Te Wu, Chien-Tsai Li, Cheng-Chung Lo